In computing terms, system buses are used to connect various components to the motherboard’s core logic and, often, to each other. Modern PCs run with a multitude of high-speed buses ranging from the interconnects between, say, the chipset and the CPU, graphics card, memory, and peripherals.

You’d be right to think that it’s possible to carry out basic video editing on any modern PC running Windows XP - straight out of the box. XP includes the Windows Movie Maker video-editing program and, although it lacks frills, it does what it does quite well.

A motherboard’s main job is to act as a conduit between the various hardware elements that make up a PC. It needs to be able to link the desired CPU(s), system memory, graphics card, hard drive(s), and add-in cards and enable them to work in harmony.

If you’re the least bit interested in graphics cards, we’re sure that you’ve heard the terms SLI and CrossFire bandied about recently. Touted as a means of achieving maximum 3D performance by, effectively, using two or more graphics cards in tandem, multi-GPU technology is here to stay. With that in mind, let’s take a closer look SLI and CrossFire; the two competing multi-GPU solutions from NVIDIA and ATI Technologies, respectively.

This TekSpek will assume you know the affects of applying a level of anti-aliasing (AA) on your 3D accelerator, be it via the driver control panel or via a control in your game. We assume you know the effect it has on image quality, so you can think about a before and after scenario. So this TekSpek isn’t about explaining what it does as such, although it will, it’s about explaining the how and why.

Explaining how a modern GPU works in completeness would take a book. Or two. Per class of chip. Per vendor. They’re extraordinarily complex pieces of engineering and production, and the end result contains more transistors than multiple modern x86 processors.

Updating drivers can sometimes be a bit of a gamble. Will the drivers come with an installer? Will you need to uninstall the old drivers first? Many drivers these days do come with an installer, which simplifies the process dramatically.